After not being able to use my inventory for about 6 months, it was finally fixed. I was very happy to be able to add things to my inventory again and I'm also deleting a lot of old items. One of the first things I did when I got my inventory back was change my avatar's appearance. It was getting rather boring wearing the same thing for 6 consecutive months. I used to change outfits almost every day!
It was a long wait to get my issue resolved, but I'm very thankful that they responded and helped with my inventory problem.